January 12, 2017 Journal article Open Access

Chapran, Marian; Angioni, Enrico; Findlay, Neil J.; Breig, Benjamin; Cherpk, Vladyslav; Stakhira, Pavlo; Tuttle, Tell; Volyniuk, Dmytro; Grazulevicius, Juozas V.; Nastishin, Yuriy A.; Lavrentovich, Oleg D.; Skabara, Peter J.

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{
  "DOI": "10.1021/acsami.6b13689", 
  "container_title": "ACS Applied Materials and Interfaces", 
  "title": "An ambipolar BODIPY derivative for a white exciplex OLED and cholesteric liquid crystal laser toward multifunctional devices", 
  "issued": {
    "date-parts": [
      [
        2017, 
        1, 
        12
      ]
    ]
  }, 
  "abstract": "<p>A new interface engineering method is demonstrated for the preparation of an efficient white organic light-emitting diode (WOLED) by embedding an ultrathin layer of the novel ambipolar red emissive compound 4,4-difluoro-2,6-di(4-hexylthiopen-2-yl)-1,3,5,7,8-pentamethyl-4-bora-3a,4a-diaza-s-indacene (bThBODIPY) in the exciplex formation region. The compound shows a hole and electron mobility of 3.3 \u00d7 10<sup>-4</sup>\u00a0and 2 \u00d7 10<sup>-4</sup>\u00a0cm<sup>2</sup>\u00a0V<sup>-1</sup>\u00a0s<sup>-1</sup>, respectively, at electric fields higher than 5.3 \u00d7 10<sup>5</sup>\u00a0V cm<sup>-1</sup>. The resulting WOLED exhibited a maximum luminance of 6579 cd m<sup>-2</sup>\u00a0with CIE 1931 color coordinates (0.39; 0.35). The bThBODIPY dye is also demonstrated to be an effective laser dye for a cholesteric liquid crystal (ChLC) laser. New construction of the ChLC laser, by which a flat capillary with an optically isotropic dye solution is sandwiched between two dye-free ChLC cells, provides photonic lasing at a wavelength well matched with that of a dye-doped planar ChLC cell.</p>", 
  "author": [
    {
      "family": "Chapran, Marian"
    }, 
    {
      "family": "Angioni, Enrico"
    }, 
    {
      "family": "Findlay, Neil J."
    }, 
    {
      "family": "Breig, Benjamin"
    }, 
    {
      "family": "Cherpk, Vladyslav"
    }, 
    {
      "family": "Stakhira, Pavlo"
    }, 
    {
      "family": "Tuttle, Tell"
    }, 
    {
      "family": "Volyniuk, Dmytro"
    }, 
    {
      "family": "Grazulevicius,  Juozas V."
    }, 
    {
      "family": "Nastishin, Yuriy A."
    }, 
    {
      "family": "Lavrentovich, Oleg D."
    }, 
    {
      "family": "Skabara, Peter J."
    }
  ], 
  "page": "4750-4757", 
  "volume": "9", 
  "type": "article-journal", 
  "issue": "5", 
  "id": "438642"
}